DYNAMICS OF WHITE WATER NETWORKS DURING WEB BREAKS

A model representing a white water network has been developed to chara cterize its dynamic behavior. This study focusses on key process model ing issues: the process flow sheet, steady-state mass and energy balan ces, and a dynamic model and its control system. The system was distur bed by web breaks in the paper machine. During simulations, the manipu lated variable used to manage broke inventories was the broke reuse ra te. The results emphasize the importance of the process and control de sign in reducing the impact of perturbations.